2 Samuel 18:18-21
English Standard Version
19Then Ahimaaz the son of Zadok said, "Let me run and carry news to the king that the Lord has delivered him from the hand of his enemies."
20And Joab said to him, "You are not to carry news today. You may carry news another day, but today you shall carry no news, because the king 's son is dead."
21Then Joab said to the Cushite, "Go, tell the king what you have seen." The Cushite bowed before Joab, and ran.